Thanks for posting! Regrettably, there are no APIs to integrate with Amazon Music and therefore this use case is not supported. We don't comment on any future products, services, or features, but if and when this type of APi is made available, we will announce that. Thanks!

You could probably hack an API together with a Tampermonkey userscript that watches the cloud player, for scrobbling anyway - probably not such much for a mobile app. The lack of play count tracking is the one thing stopping me from signing up for Music Unlimited - I make heavy use of play counts in iTunes for making play lists. Ideally the Amazon player would track counts itself, but I'd probably write something that does it for my own use if there were an API. The Tampermonkey workaround just occurred to me. The main drawback is that it may not be durable across cloud player updates.

I would also be very interested in an Amazon Music API.. I get negative reviews for my Android app, Walkout Song DJ, at least once a week complaining that I do not support music from an Amazon Music subscription and also that the songs people purchased individually from Amazon are very difficult to access. I do provide support for Apple Music subscription songs on my iOS version and that support is incredibly popular with users adding more than 100,000 songs per month from their Apple Music subscriptions.